WebDriver + Printing to A4 size

[mLipok]

I tried to print this web page

https://aplikacja.ceidg.gov.pl/CEIDG/CEIDG.Public.UI/Search.aspx

using WebDriver to A4 portrait (210x297 mm) with no success.

As I'm able to do this on few other pages then I check how to FireFox save the page to PDF when I try it manually.

And the issue is that I always get A3 landscape (297x420 mm)

I would ask some folks to check what is wrong with this page and how I can ensure that generated PDF with manually printng give me A4 portrait (210x297 mm) instead A3 landscape (297x420 mm)
 

I will be grateful for any help

[ioa747]

with Save to PDF result is A3
with Microsoft Print to PDF result is A4

[mLipok]

Yeah this webpages some how blocks the possibility to change format.

Using this page I get

and another page:

From this reason I think some WebMaster should have a look on this.

[ioa747]

there is a link below

Print using the system dialog...

 

Edited October 11 by ioa747

[mLipok]

I know.
Even better using WebDriver I can set: this setting

about:config

print.prefer_system_dialog	true

But I'm not able to set A4 Format.

And intention is to use WebDriver I do not want to use any Dialog just grab Binary representation of the PDF.

 

[mLipok]

Some interestning findings:

https://support.mozilla.org/en-US/questions/1275543

But it is related to Microsoft Print to PDF
print.printer_Microsoft_Print_to_PDF.print_paper_width

not to 
Mozilla_Save_to_PDF.print_paper_width

[ioa747]

I don't think it's a browser issue, it does the same with the chrome
and apart from this web page Firefox gives the option to choose a paper size, and by default it has A4

 

Edited October 11 by ioa747

[mLipok]

16 minutes ago, ioa747 said:

Firefox gives the option to choose a paper size, and by default it has A4

In most cases: Yes
For this web page: No

For this reason I think that the help of some web master is needed, as it is a problem related to the website - the way it was created.

Edited October 11 by mLipok

[Danp2]

Have you tried setting the margins to None?

[mLipok]

asked here:

https://superuser.com/questions/1859050/firefox-and-chrome-printing-to-pdf-with-a4-size

https://superuser.com/q/1859050/1049106

 

Edited 18 hours ago by mLipok

[mLipok]

On 10/12/2024 at 1:53 PM, Danp2 said:

Have you tried setting the margins to None?

With webdriver - no.
Manually checked a moment ago, and still no success.

 

[mLipok]

10 hours ago, mLipok said:

asked here:

https://superuser.com/questions/1859050/firefox-and-chrome-printing-to-pdf-with-a4-size

https://superuser.com/q/1859050/1049106

 

https://superuser.com/a/1859074/1049106

 

Quote

It's because this CSS file on the page defines the following:

@page {
  size: a3;
}

Normally you can pick the size of the document in More settings like on this website, but when page size is strictly defined, the default Chrome/Firefox PDF printer implementation skips the choice.

Either:

• use a PDF printer with more freedom, like from Foxit
• disable/override that CSS, which may prove cumbersome as @page doesn't seem to be listed even when emulating print
• emulate screen in Chrome DevTools (F12) -> kebab menu icon  -> More tools -> Rendering -> Emulate CSS media type and then print

Finally I use:

@page {size: a4;  !important;}

with add0n.com/stylus.html and this works fine.
Now I have to add this to my WebDriver CSS injector.